/* 启梦主题基础样式
 * 令牌与 frontend/src/styles/base.css 保持一致（此处用于首屏防闪烁，随 <link> 预先加载） */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
}

:root {
    --qm-accent: #F05C9A;
    /* 页面内容区最大宽度：header.php 按后台「页面宽度」设置注入覆盖 */
    --qm-page-width: 1128px;
    --qm-bg: #f4f5f7;
    --qm-bg-2: #e9ebef;
    --qm-surface: rgba(255, 255, 255, .64);
    --qm-border: rgba(17, 24, 39, .08);
    --qm-text: #1f2329;
    --qm-text-2: rgba(31, 35, 41, .62);
    --qm-hover: rgba(31, 35, 41, .07);
    --qm-shadow: 0 10px 34px rgba(20, 26, 40, .10);
    --qm-nav-h: 60px;
    --qm-logo-grad-end: #2b303b;
    --qm-grad-2: #7a5af8;
    --qm-popup-bg: rgba(255, 255, 255, .92);
    --qm-popup-solid: #ffffff;
    --qm-layout-line: rgba(31, 35, 41, .22);
    --qm-zone-gap: 18px;
    color-scheme: light;
}

html.qm-dark {
    --qm-bg: #0e1013;
    --qm-bg-2: #16181d;
    --qm-surface: rgba(23, 25, 30, .58);
    --qm-border: rgba(255, 255, 255, .08);
    --qm-text: #e8eaee;
    --qm-text-2: rgba(232, 234, 238, .60);
    --qm-hover: rgba(232, 234, 238, .09);
    --qm-shadow: 0 10px 34px rgba(0, 0, 0, .42);
    --qm-logo-grad-end: #f5f6f8;
    --qm-popup-bg: rgba(26, 28, 33, .94);
    --qm-popup-solid: #1a1c21;
    --qm-layout-line: rgba(232, 234, 238, .26);
    color-scheme: dark;
}

body {
    min-height: 100vh;
    background: var(--qm-bg);
    color: var(--qm-text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    transition: background-color .3s ease, color .3s ease;
}

/* Vue 挂载点（白页模式，模块逐步开发） */
#app {
    min-height: 100vh;
}

/* 顶部悬浮导航占位：内容区避开悬浮胶囊 */
.qm-main {
    max-width: var(--qm-page-width, 1128px);
    min-height: calc(100vh - 120px);
    margin: 0 auto;
    padding: calc(var(--qm-nav-h) + 34px) 16px 0;
}

::selection {
    background: var(--qm-accent);
    color: #fff;
}

/* ===== 首屏加载骨架（header.php 输出，app.js 挂载 Vue 后淡出移除） ===== */
#qm-skeleton {
    position: fixed;
    inset: 0;
    z-index: 2000;
    overflow: hidden;
    background: var(--qm-bg);
    transition: opacity .55s ease, visibility .55s ease;
}
#qm-skeleton.is-done {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}
#qm-skeleton.is-reduce,
#qm-skeleton.is-reduce * {
    transition: none !important;
    animation: none !important;
}

/* 骨架块通用：浅灰底 + 高光扫过（shimmer） */
#qm-skeleton .qms-shimmer,
#qm-skeleton .qms-logo,
#qm-skeleton .qms-nav i,
#qm-skeleton .qms-pill,
#qm-skeleton .qms-avatar,
#qm-skeleton .qms-carousel,
#qm-skeleton .qms-notice span,
#qm-skeleton .qms-notice em,
#qm-skeleton .qms-card b,
#qm-skeleton .qms-card u {
    position: relative;
    overflow: hidden;
    background: var(--qm-bg-2);
}
#qm-skeleton .qms-shimmer::after,
#qm-skeleton .qms-logo::after,
#qm-skeleton .qms-nav i::after,
#qm-skeleton .qms-pill::after,
#qm-skeleton .qms-avatar::after,
#qm-skeleton .qms-carousel::after,
#qm-skeleton .qms-notice span::after,
#qm-skeleton .qms-notice em::after,
#qm-skeleton .qms-card b::after,
#qm-skeleton .qms-card u::after {
    content: "";
    position: absolute;
    inset: 0;
    transform: translateX(-100%);
    background: linear-gradient(100deg, transparent 18%, color-mix(in srgb, var(--qm-accent) 10%, rgba(255, 255, 255, .5)) 50%, transparent 82%);
    animation: qms-sweep 1.6s ease-in-out infinite;
}
html.qm-dark #qm-skeleton .qms-shimmer::after,
html.qm-dark #qm-skeleton .qms-logo::after,
html.qm-dark #qm-skeleton .qms-nav i::after,
html.qm-dark #qm-skeleton .qms-pill::after,
html.qm-dark #qm-skeleton .qms-avatar::after,
html.qm-dark #qm-skeleton .qms-carousel::after,
html.qm-dark #qm-skeleton .qms-notice span::after,
html.qm-dark #qm-skeleton .qms-notice em::after,
html.qm-dark #qm-skeleton .qms-card b::after,
html.qm-dark #qm-skeleton .qms-card u::after {
    background: linear-gradient(100deg, transparent 18%, rgba(255, 255, 255, .09) 50%, transparent 82%);
}
@keyframes qms-sweep {
    to { transform: translateX(100%); }
}

/* 首屏布局镜像：导航胶囊 + 轮播 + 通知条 + 内容卡片栅格 */
#qm-skeleton .qms-nav {
    position: absolute;
    top: 14px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 26px;
    width: min(var(--qm-page-width, 1128px), calc(100% - 24px));
    height: var(--qm-nav-h);
    padding: 0 16px;
    border-radius: 999px;
    background: var(--qm-surface);
    -webkit-backdrop-filter: blur(20px) saturate(1.8);
    backdrop-filter: blur(20px) saturate(1.8);
    box-shadow: var(--qm-shadow);
}
#qm-skeleton .qms-logo {
    width: 84px;
    height: 30px;
    border-radius: 9px;
    flex: none;
}
#qm-skeleton .qms-nav i {
    width: 58px;
    height: 15px;
    border-radius: 999px;
    flex: none;
}
#qm-skeleton .qms-pill {
    margin-left: auto;
    width: 120px;
    height: 34px;
    border-radius: 999px;
    flex: none;
}
#qm-skeleton .qms-avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    flex: none;
}
#qm-skeleton .qms-main {
    position: absolute;
    top: calc(var(--qm-nav-h) + 34px);
    left: 50%;
    transform: translateX(-50%);
    width: min(var(--qm-page-width, 1128px), calc(100% - 32px));
}
#qm-skeleton .qms-carousel {
    height: clamp(420px, 74vh, 760px);
    border-radius: 12px;
    animation: qms-breathe 2.4s ease-in-out infinite;
}
@keyframes qms-breathe {
    50% { filter: brightness(1.04); }
}
#qm-skeleton .qms-notice {
    display: flex;
    align-items: center;
    gap: 12px;
    height: 46px;
    margin-top: 14px;
    padding: 0 15px;
    border-radius: 999px;
}
#qm-skeleton .qms-notice span {
    width: 52px;
    height: 15px;
    border-radius: 999px;
    flex: none;
}
#qm-skeleton .qms-notice em {
    width: min(46%, 320px);
    height: 13px;
    border-radius: 999px;
    animation-delay: .25s;
}
#qm-skeleton .qms-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-top: 22px;
}
#qm-skeleton .qms-card {
    padding: 18px 18px 20px;
    border-radius: 14px;
    background: var(--qm-surface);
}
#qm-skeleton .qms-card b {
    display: block;
    width: 62%;
    height: 17px;
    border-radius: 7px;
    margin-bottom: 14px;
}
#qm-skeleton .qms-card u {
    display: block;
    height: 11px;
    border-radius: 6px;
    margin-top: 9px;
    text-decoration: none;
}
#qm-skeleton .qms-card b::after { animation-delay: .1s; }
#qm-skeleton .qms-card u:nth-of-type(1)::after { animation-delay: .2s; }
#qm-skeleton .qms-card u:nth-of-type(2)::after { animation-delay: .3s; }
#qm-skeleton .qms-card u:nth-of-type(3)::after { animation-delay: .4s; }

@media (max-width: 760px) {
    #qm-skeleton .qms-carousel {
        height: clamp(360px, 66vh, 620px);
    }
    #qm-skeleton .qms-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 12px;
    }
    #qm-skeleton .qms-card:nth-child(n+5) {
        display: none;
    }
    #qm-skeleton .qms-nav i:nth-child(n+5) {
        display: none;
    }
    #qm-skeleton .qms-pill {
        width: 92px;
    }
}
@media (max-width: 480px) {
    #qm-skeleton .qms-grid {
        grid-template-columns: 1fr;
    }
    #qm-skeleton .qms-card:nth-child(n+3) {
        display: none;
    }
    #qm-skeleton .qms-notice {
        height: 42px;
    }
}

/* 减弱动态：不做 shimmer 扫光 */
@media (prefers-reduced-motion: reduce) and (hover: none) {
    #qm-skeleton .qms-shimmer::after,
    #qm-skeleton .qms-logo::after,
    #qm-skeleton .qms-nav i::after,
    #qm-skeleton .qms-pill::after,
    #qm-skeleton .qms-avatar::after,
    #qm-skeleton .qms-carousel::after,
    #qm-skeleton .qms-notice span::after,
    #qm-skeleton .qms-notice em::after,
    #qm-skeleton .qms-card b::after,
    #qm-skeleton .qms-card u::after {
        animation: none;
    }
}